将使用多个线程与RandomAccessFile帮助性能？ [英] Will using multiple threads with a RandomAccessFile help performance?

问题描述

我正在开发一个（database-ish）项目，数据存储在一个平面文件中。对于读/写我使用 RandomAccessFile 类。我将从多线程中获得任何东西，并给每个线程一个每个 RandomAccessFile 的实例，或者一个线程/实例是否一样快？在读/写有什么区别，你可以让实例只做读取，不能写？

I am working on a (database-ish) project, where data is stored in a flat file. For reading/writing I'm using the RandomAccessFile class. Will I gain anything from multithreading, and giving each thread an instance each of RandomAccessFile, or will one thread/instance be just as fast? Is there any difference in reading/writing, as you can make instances that only do the reading, and can't write?

推荐答案

一个相当常见的问题。基本上使用多线程不会使你的硬盘驱动器更快。

A fairly common question. Basically using multiple threads will not make your hard drive go any faster. Instead performing concurrent request can make it slower.

磁盘子系统，esp IDE，EIDE，SATA设计为以最快的速度顺序读取/写入。

Disk subsystems, esp IDE, EIDE, SATA, are designed to read/write sequentially fastest.

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